Commit abc599ef authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by Luca Coelho
Browse files

iwlwifi: pcie: don't crash when rx queues aren't allocated in interrupt 



WARNING is better than crashing. Since this happened to me,
be on the safe side.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.d4651427fcda.I1bcecb73676d039e2521309c07fc6b6314a90546@changeid


Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent 781b9ae4

drivers/net/wireless/intel/iwlwifi/pcie/rx.c

+3 −0
Original line number Diff line number Diff line
@@ -1658,6 +1658,9 @@ irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id) 
	if (WARN_ON(entry->entry >= trans->num_rx_queues))

		return IRQ_NONE;



	if (WARN_ONCE(!rxq, "Got MSI-X interrupt before we have Rx queues"))

		return IRQ_NONE;



	lock_map_acquire(&trans->sync_cmd_lockdep_map);



	local_bh_disable();